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Finding the Fourth Proportional to 119,338.65, 164,681.69 and 65,625.93

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Solution

The fourth proportional to 119,338.65, 164,681.69 and 65,625.93 is: 90,560.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,338.65 : 164,681.69 = 65,625.93 : x
  2. Step 2: Convert to fraction form
    119,338.65/164,681.69 = 65,625.93/x
  3. Step 3: Cross multiply
    119,338.65x = 164,681.69 × 65,625.93
  4. Step 4: Simplify right side
    119,338.65x = 10,807,389,060.22
  5. Step 5: Solve for x
    x = 10,807,389,060.22/119,338.65
  6. Step 6: Final answer
    x = 90,560.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.